REQUIRED FIELDS ON THIS PAGE YOU MUST COMPLETE ALL OF THESE

Please enter a password for your user account. Note that passwords are case-sensitive.

Password:

Confirm Password:

Email Address

PLEASE READ BELOW PRIOR TO ENTERING AN EMAIL ADDRESS!

ATTENTION!

YOU MUST ACTIVATE YOUR ACCOUNT!

Activation requires you reply to an email we will send you after you register... if you do not reply to this email, you will not be able to view certain areas of the forum or certain images... nor will you be able download software.

I already have the stiffeners in the corners and the square stiffener spanning across the middle of the sides. That seemed to me to be enough to dampen the two, relatively small sides. Where else do you recommend adding the dowles? I assume you know I made the small box, not the large, floor standing one.

Corner braces are not really needed. The least resonant part of the box is in the corners.

Here is a pic of the prototype boxes.

04-11-14 01:49 PM

Bullitt5094

Re: Let's launch this thing with a big sale.

I already have the stiffeners in the corners and the square stiffener spanning across the middle of the sides. That seemed to me to be enough to dampen the two, relatively small sides. Where else do you recommend adding the dowles? I assume you know I made the small box, not the large, floor standing one.

Adding another layer of MDF would be way too much of a pain. I may invest in some of your liner product to see if that helps. I will do the radius, at least enough to get rid for the inner edge. I'm very impressed with the sound just as they are now. They sound much bigger, and certainly much more expensive, than they are. I've photographed the construction process and will post a thread on that when I have time. I spent about $200 total on the pair and they sound better than most $1000 systems I've heard. Certainly better than any reasonably priced bookshelf speakers. They will get loud, but won't go rock concert loud. But gee, what do you expect from a speaker that size? Plenty of DB for most living rooms and certainly most apartments.

Okay, cut some bracing using dowel rods to stiffen up the panels then line them with a sheet of No Rez and that will help a lot.

And I am glad you like them. They really are over achievers.

04-11-14 12:47 PM

Bullitt5094

Re: Let's launch this thing with a big sale.

Adding another layer of MDF would be way too much of a pain. I may invest in some of your liner product to see if that helps. I will do the radius, at least enough to get rid for the inner edge. I'm very impressed with the sound just as they are now. They sound much bigger, and certainly much more expensive, than they are. I've photographed the construction process and will post a thread on that when I have time. I spent about $200 total on the pair and they sound better than most $1000 systems I've heard. Certainly better than any reasonably priced bookshelf speakers. They will get loud, but won't go rock concert loud. But gee, what do you expect from a speaker that size? Plenty of DB for most living rooms and certainly most apartments.

I've constructed the enclosure using 1/2" Hardwood Ply instead of 3/4" MDF. You show a 3/8 internal radius on the midrange transducer mounting hole. With only 1/2" thick material, would that internal radius still be necessary? Also, how do you think the 1/2" hardwood vs the 3/4" MDF would affect the sound?

The hardwood will be very resonant compared to MDF. And being an even thinner material will make it worse. I'd add another layer using 1/2" MDF.

And if the inside edge doesn't have the radius then it will adversely effect the response. The edge diffraction will add a little bump around 1kHz.

This thread has more than 10 replies.
Click here to review the whole thread.